Comments on: The Quest for Python 3 http://www.j5live.com/2010/02/03/the-quest-for-python-3/ Where the urethane hits the pavement Fri, 27 Aug 2010 16:17:13 -0400 http://wordpress.org/?v=2.8.4 hourly 1 By: Dave Malcolm http://www.j5live.com/2010/02/03/the-quest-for-python-3/comment-page-1/#comment-20613 Dave Malcolm Thu, 18 Feb 2010 20:52:34 +0000 http://www.j5live.com/?p=730#comment-20613 > good start though. One of the things that > would be nice is if it put comments on code > that needs to be looked at by the programmer. John: interesting; what kind of thing could it detect - string handling uncertainty? Can you file an RFE with some ideas on this in the tracker here: https://fedorahosted.org/2to3c/ Thanks! > good start though. One of the things that
> would be nice is if it put comments on code
> that needs to be looked at by the programmer.
John: interesting; what kind of thing could it detect – string handling uncertainty? Can you file an RFE with some ideas on this in the tracker here:
https://fedorahosted.org/2to3c/
Thanks!

]]> By: J5 http://www.j5live.com/2010/02/03/the-quest-for-python-3/comment-page-1/#comment-20607 J5 Fri, 05 Feb 2010 17:23:57 +0000 http://www.j5live.com/?p=730#comment-20607 @James, Ya, David's 2to3c code just hits the most common conversions. He leaves the string handling to the module programmer. 2to3c is a good start though. One of the things that would be nice is if it put comments on code that needs to be looked at by the programmer. @James,

Ya, David’s 2to3c code just hits the most common conversions. He leaves the string handling to the module programmer. 2to3c is a good start though. One of the things that would be nice is if it put comments on code that needs to be looked at by the programmer.

]]> By: James Henstridge http://www.j5live.com/2010/02/03/the-quest-for-python-3/comment-page-1/#comment-20605 James Henstridge Fri, 05 Feb 2010 03:57:05 +0000 http://www.j5live.com/?p=730#comment-20605 The biggest issue I found when porting an extension over to Python 3 was string handling, and I'm not sure automated tools would have helped. The particular extension I was working on was a binding for GPG and had been using 8 bit strings for UTF-8 encoded data (e.g. the user names on keys), ASCII representations of binary data (e.g. key fingerprints) and actual binary data (e.g. the data being encrypted). This is the sort of problem that the Python level 2to3 translator has problems with, and the solution was similar too: convert human readable data to the unicode API (or PyUnicode_* in this case), and anything that needs to be binary to the by tes API (or PyBytes_*, which is aliased to PyString_* for 2.x). The biggest issue I found when porting an extension over to Python 3 was string handling, and I’m not sure automated tools would have helped.

The particular extension I was working on was a binding for GPG and had been using 8 bit strings for UTF-8 encoded data (e.g. the user names on keys), ASCII representations of binary data (e.g. key fingerprints) and actual binary data (e.g. the data being encrypted).

This is the sort of problem that the Python level 2to3 translator has problems with, and the solution was similar too: convert human readable data to the unicode API (or PyUnicode_* in this case), and anything that needs to be binary to the by tes API (or PyBytes_*, which is aliased to PyString_* for 2.x).

]]> By: J5 http://www.j5live.com/2010/02/03/the-quest-for-python-3/comment-page-1/#comment-20604 J5 Thu, 04 Feb 2010 17:13:23 +0000 http://www.j5live.com/?p=730#comment-20604 So I stand corrected - here is the progress for PyGtk https://bugzilla.gnome.org/show_bug.cgi?id=566641 So I stand corrected – here is the progress for PyGtk

https://bugzilla.gnome.org/show_bug.cgi?id=566641

]]> By: ulrik http://www.j5live.com/2010/02/03/the-quest-for-python-3/comment-page-1/#comment-20603 ulrik Thu, 04 Feb 2010 08:20:59 +0000 http://www.j5live.com/?p=730#comment-20603 Like the Python 3 porting guidelines says, it would be nice if the gtk bindings would be ported to Py 3 without API break. This is explicitly mentioned in the porting guidelines since it's unworkable if everyone decides to ship API changes together with the forward-port of python version -- it makes the task must harder for all applications using pygtk. Like the Python 3 porting guidelines says, it would be nice if the gtk bindings would be ported to Py 3 without API break. This is explicitly mentioned in the porting guidelines since it’s unworkable if everyone decides to ship API changes together with the forward-port of python version — it makes the task must harder for all applications using pygtk.

]]> By: J5 http://www.j5live.com/2010/02/03/the-quest-for-python-3/comment-page-1/#comment-20602 J5 Thu, 04 Feb 2010 00:56:16 +0000 http://www.j5live.com/?p=730#comment-20602 David Malcolm just moved over to the Fedora Team inside Red Hat and is working to get Fedora Python 3 ready by F13. I'm not sure it is going to happen that soon but there should be a parallel installable environment by then. Once the distros start shipping Python 3 modules should move over more quickly. The issue is it isn't an easy fix and since Python 2.x is such a great piece of software, there is no real rush to move. I think with GTK+ we are more focused with GNOME 3 right now. My best guess is GTK+ for Python 3 will follow the JavaScript bindings and be generated mostly from the introspection data. I'll have to follow up with Johan Dalin to see what his thoughts are there. David Malcolm just moved over to the Fedora Team inside Red Hat and is working to get Fedora Python 3 ready by F13. I’m not sure it is going to happen that soon but there should be a parallel installable environment by then. Once the distros start shipping Python 3 modules should move over more quickly. The issue is it isn’t an easy fix and since Python 2.x is such a great piece of software, there is no real rush to move.

I think with GTK+ we are more focused with GNOME 3 right now. My best guess is GTK+ for Python 3 will follow the JavaScript bindings and be generated mostly from the introspection data. I’ll have to follow up with Johan Dalin to see what his thoughts are there.

]]> By: Simon http://www.j5live.com/2010/02/03/the-quest-for-python-3/comment-page-1/#comment-20601 Simon Thu, 04 Feb 2010 00:42:37 +0000 http://www.j5live.com/?p=730#comment-20601 Good to see - it's been frustrating how little adoption of Python3 there's been among open-source projects. It's been out over a year, yet there are still no Gtk+ bindings, nor even a hint that they're being worked on... Good to see – it’s been frustrating how little adoption of Python3 there’s been among open-source projects. It’s been out over a year, yet there are still no Gtk+ bindings, nor even a hint that they’re being worked on…

]]>